4.1.1.112	-20°C, potassium phosphate buffer, pH 7, 50% glycerol, 2 month	
4.1.1.112	25°C, 50 mM triethanolamine/HCl, pH 7.0, 5 days, almost complete inactivation, presence of 1 mM Mn2+ and 50% v/v glycerol stabilize	
4.1.1.112	4°C, glycerol, 2 months	
4.1.1.112	4°C, phosphate buffer or arsenate buffer, pH 7, with mercaptoethanol, N2-atmosphere, 2 months	
4.1.1.112	4°C, Tris-HCl buffer, pH 7.5, 2 month, 40% loss of activity	
4.1.1.112	frozen, Tris-HCl buffer, pH 7.5, 1 month, 25% loss of activity